Premium Metal Roofing · Toronto & GTA

Standing Seam.The Gold Standard.

Concealed fasteners. Interlocking panels. A 50+ year lifespan engineered for Ontario winters. Standing seam is the highest-performance metal roofing system available — and Cetra Exterior installs it right.

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What Is Standing Seam

Concealed Fasteners. Unmatched Durability.

Standing seam metal roofing features vertical panels that interlock at raised seams, with every fastener hidden beneath the surface. Unlike exposed-fastener systems, there are no screws to rust, back out, or create leak points. The result is a clean, modern roofline that requires virtually no maintenance for decades.

Cetra Exterior installs standing seam systems in steel, aluminum, and copper from leading manufacturers. Every installation qualifies for best-in-class product warranties, and our workmanship is backed by our own 10-year guarantee.

50+Year Lifespan

0Exposed Fasteners

100%Canadian Climate Ready

Standing seam metal roof installed on a house

What's Included

What You Get With Every Installation

✓Concealed fastener system — no exposed screws

✓Exceptional resistance to wind, ice, and snow

✓Ideal for low and steep-slope roofs

✓50+ year lifespan with minimal maintenance

✓Available in steel, aluminum, and copper

✓Modern aesthetic for contemporary homes

✓Excellent for solar panel integration

✓Qualifies for manufacturer extended warranty

Why Standing Seam

Built for Canadian Winters

❄

Ice & Snow Performance

Smooth, seamless panels shed snow naturally. No ice dams forming around exposed fasteners. Standing seam is the top choice for Ontario's demanding freeze-thaw climate.

⊗

No Exposed Fasteners

Every fastener is hidden beneath interlocking panels, eliminating the most common source of metal roof leaks — and giving your home a cleaner, more refined look.

✦

Solar Ready

The continuous seam profile is the ideal non-penetrating mounting point for solar panels. If you're planning solar, standing seam is the right foundation.

How It Works

Our Installation Process

Free Estimate & Assessment

We inspect your roof, take measurements, and discuss your options — no obligation.

Material Selection & Permit

You choose your panel profile, colour, and metal type. We pull all required permits.

Professional Installation

Our certified crew completes the full tear-off and installation, typically in 1–3 days.

Inspection & Walkthrough

Final inspection with the homeowner. We don't leave until you're 100% satisfied.

Common Questions

Frequently Asked Questions

How long does standing seam installation take? +

Most residential roofs are completed within 1–3 days depending on size and complexity. Larger homes or intricate rooflines may take up to 5 days.

Is standing seam more expensive than asphalt shingles? +

Yes, the upfront cost is higher — but with a 50+ year lifespan and virtually zero maintenance, standing seam offers a far better long-term return on investment. Most homeowners replace asphalt roofs 2–3 times in the span of one standing seam roof.

Can standing seam be installed over my existing roof? +

In most cases we recommend a full tear-off so we can inspect the roof deck for damage, moisture, or rot. We assess this during your free estimate and will advise on the best approach for your specific roof.

What colours are available? +

Standing seam panels are available in a wide range of Kynar-coated colours — from classic charcoal and slate to bold reds and earth tones. We'll bring samples to your consultation.